Plant Structure Morphology Anatomy PLANT MORPHOLOGY Study of

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Plant Structure (Morphology & Anatomy)

Plant Structure (Morphology & Anatomy)

PLANT MORPHOLOGY Study of external structure of a plant

PLANT MORPHOLOGY Study of external structure of a plant

Plant Morphology Shoot system • Stem • Supports and places leaves • Transports H

Plant Morphology Shoot system • Stem • Supports and places leaves • Transports H 2 O and nutrients • Leaves • Photosynthesis • Reproductive structures - Flowers Root system • Anchors the plant • Absorbs water and minerals • Storage (CHO) & synthesis of some hormones • Propagation

Root & Shoot Tips

Root & Shoot Tips

Dicots and Monocots plants Flowering plants possess three kinds of vegetative (non-reproductive) organs: Roots,

Dicots and Monocots plants Flowering plants possess three kinds of vegetative (non-reproductive) organs: Roots, Stems, and Leaves ﺍﻟﺰﻫﺮﺓ ﻭﻫﻲ. ﻭﺍﻷﻮﺭﺍﻕ ، ﺍﻟﺠﺬﻭﺭ ﻭﺍﻟﺴﻴﻘﺎﻥ : ( ﺍﻟﻨﺒﺎﺗﺎﺕ ﺍﻟﺰﻫﺮﺓ ﻟﻬﺎ ﺛﻼﺛﺔ ﺃﻨﻮﺍﻉ ﻣﻦ ﺍﻷﻌﻀﺎﺀ ﺍﻟﺨﻀﺮﻳﺔ )ﻏﻴﺮ ﺍﻟﺘﻜﺎﺛﺮﻳﺔ . ﺍﻟﻌﻀﻮ ﺍﻟﺘﻜﺎﺛﺮﻱ ﻟﻜﺎﺳﻴﺎﺕ ﺍﻟﺒﺬﻭﺭ The flower is the reproductive organ of the Angiosperms. • Shoots system consist of Stems and leaves. • Functions of Shoots system: Photosynthesis, Support, Reproduction, Storage and Transport • Functions of Roots system: Anchorage, absorption of water and Minerals, provides nutrients for the shoot, storage for food

Plant Seedling – Monocotyledons (Monocots)- have a single seed leaf - Dicotyledons (Dicots)- have

Plant Seedling – Monocotyledons (Monocots)- have a single seed leaf - Dicotyledons (Dicots)- have double seed leaves

Seed Germination Corn Grain

Seed Germination Corn Grain

Roots Function - absorption, anchorage Structure – root cap, root hairs, endodermis Adventitious roots

Roots Function - absorption, anchorage Structure – root cap, root hairs, endodermis Adventitious roots - A root growing from a location other than the underground rootsas from a stem or leaf Lateral roots - arise from another root (1˚, 2˚, etc. )

Roots: Specialized for H 2 O and Nutrient Absorption Copyright © Mc. Graw-Hill Companies

Roots: Specialized for H 2 O and Nutrient Absorption Copyright © Mc. Graw-Hill Companies Permission Required for Reproduction or Display

Root Types: Adventitious & Tap Root System ﺍﻟﺠﺬﻭﺭ ﺍﻟﻌﺮﺿﻴﺔ ﻭﺍﻟﺠﺬﻭﺭ ﺍﻟﻮﺗﺪﻳﺔ : ﺃﻨﻮﺍﻉ ﺍﻟﺠﺬﺭ

Root Types: Adventitious & Tap Root System ﺍﻟﺠﺬﻭﺭ ﺍﻟﻌﺮﺿﻴﺔ ﻭﺍﻟﺠﺬﻭﺭ ﺍﻟﻮﺗﺪﻳﺔ : ﺃﻨﻮﺍﻉ ﺍﻟﺠﺬﺭ Copyright © Mc. Graw-Hill Companies Permission Required for Reproduction or Display Fibrous root Taproot Copyright © Mc. Graw-Hill Companies tap. Permissi

Root Modifications: Storage Roots ﺟﺬﻭﺭ ﺗﺨﺰﻳﻨﻴﺔ Storage roots Raphanus sativus, Radish Storage roots, Sweet

Root Modifications: Storage Roots ﺟﺬﻭﺭ ﺗﺨﺰﻳﻨﻴﺔ Storage roots Raphanus sativus, Radish Storage roots, Sweet potato

buttress roots ﺟﺬﻭﺭ ﻣﺴﺎﻋﺪﺓ buttress roots, rusty-leaved fig ﺟﺬﻭﺭ ﻣﺴﺎﻋﺪﺓ

buttress roots ﺟﺬﻭﺭ ﻣﺴﺎﻋﺪﺓ buttress roots, rusty-leaved fig ﺟﺬﻭﺭ ﻣﺴﺎﻋﺪﺓ

Respiratory roots ﺟﺬﻭﺭ ﺗﻨﻔﺴﻴﺔ Pneumatophores (respiratory roots) Avicennia marina, black mangrove

Respiratory roots ﺟﺬﻭﺭ ﺗﻨﻔﺴﻴﺔ Pneumatophores (respiratory roots) Avicennia marina, black mangrove

Prop roots ﺟﺬﻭﺭ ﺩﻋﺎﻣﻴﺔ Prop roots (also adventitious)

Prop roots ﺟﺬﻭﺭ ﺩﻋﺎﻣﻴﺔ Prop roots (also adventitious)

Haustoria – parasitic roots ﻣﻤﺼﻴﺔ - ﺟﺬﻭﺭﻃﻔﻴﻠﻴﺔ Copyright © Mc. Graw-Hill Companies Permission Required

Haustoria – parasitic roots ﻣﻤﺼﻴﺔ - ﺟﺬﻭﺭﻃﻔﻴﻠﻴﺔ Copyright © Mc. Graw-Hill Companies Permission Required for Reproduction or Display

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